You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Place Along Needles Highway (S.D. 87) 3 miles east of Sylvan Lake (5.5 miles northeast of Custer). In deep moist valley Remove constraint Place: Along Needles Highway (S.D. 87) 3 miles east of Sylvan Lake (5.5 miles northeast of Custer). In deep moist valley Topic Fungi Remove constraint Topic: Fungi